If dirt is present during the welding process, the molten metal spatters and leaves you with excessive clean-up. Before you begin a weld, ensure your metal is free from dirt and debris.
You should also consider the type of oil and protective coatings your metal manufacturer uses. While some coatings are welded through seamlessly, others cause excessive spattering. You can remove dirt, oil, and rust from your metals with a grinder, wire brush, or flap wheel.
Cleanliness is needed with your filler material, too. It’s easy to ignore dirt and oil buildup on welding wire or rods stored in your shop, but it’s essential to ensure your filler material is clean before beginning a weld. To prevent filler dirt and contamination, keep your materials in a cool, dry place.